Where: Quebec, Canada (49.6° N, 63.2° W: paleocoordinates 21.6° S, 36.1° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Merrimack Formation, Rhuddanian (443.4 - 440.8 Ma)

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal; lithified limestone

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: H. Nestor, P. Copper, and C. Stock. 2010. Late Ordovician and Early Silurian stromatoporoid sponges from Anticosti Island, eastern Canada: Crossing the O/S mass extinction boundary 1-163 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 113143: authorized by Wolfgang Kiessling, entered by Uta Merkel on 22.07.2011

Creative Commons license: CC BY (attribution)